ABB Totalflow NGC8206 Manual Del Usuario página 278

TERM
Handshaking
Hardware
Harmonic
HART
Hazardous Area
Heat
Heat Capacity
Heat of Condensation
Heat of Vaporization
Heat Transfer
Heating Value
Heavy Crude
Heavy Ends
Heavy Hydrocarbons
Heptane (C7H16)
Hertz
Hexadecimal
Hexane (C6H14)
Página B–32
Exchange of predetermined signals between two devices establishing a
connection. Usually part of a communications protocol.
The physical components of a computer system, such as the circuit
boards, plug-in boards, chassis, enclosures, peripherals, cables, and so
on. It does not include data or computer programs.
A sinusoidal component of a waveform that is a whole multiple of the
fundamental frequency. An oscillation that is an integral sub-multiple of
the fundamental is called a sub-harmonic.
Communication Interface.
Area in which an explosive gas atmosphere is present or may be
expected to be present.
Thermal energy. Heat is expressed in units of calories or Btu's
The amount of heat required to raise the temperature of a body (of any
mass) one degree Celsius.
The amount of heat that must be removed from one gram of a vapor at
it's condensation point to condense the vapor with no change in
temperature.
The amount of heat required to vaporize one gram of a liquid at its
boiling point with no change in temperature. Usually expressed in J/g.
The molar heat of vaporization is the amount of heat required to
vaporize one mole of liquid at its boiling point with no change in
temperature and usually expressed ion kJ/mol.
A form of energy that flows between two samples of matter because of
their differences in temperature.
The amount of heat developed by the complete combustion of a unit
quantity of a material. Heating values for natural gas are usually
expressed as the Btu per Cf of gas at designated conditions
(temperature and pressure) and either on the dry or water saturated
basis.
Crude oil of 20-degree API gravity or less; often very thick and viscous.
The portion of a hydrocarbon mixture having the highest boiling point.
Hexanes or heptanes and all heavier hydrocarbons are usually the
heavy ends in a natural gas stream.
More susceptible to increases in temperature and decreases in
pressure, thus causing liquids to form.
A saturated hydrocarbon (Alkane) with 7 carbon atoms in it's molecule
(C7H16). A liquid under normal conditions.
Cycles per second. A measure of frequency or bandwidth.
A numbering system to the base 16, 0 through F.
A saturated hydrocarbon (Alkane) with six carbon atoms in it's molecule
(C6H14). A liquid under normal conditions.
DEFINITION
2103650-001 – rev. AB